TDPAD studies of graphite intercalated by AsF5 vapour

The TDPAD technique has been used via the¹⁹F(p,p¹γ)¹⁹F reaction to study the graphite intercalation compound (GIC) formed in AsF₅ vapour. The spectra are dominated by the quadrupole interaction corresponding to the formation of C-F bonds, withv _q~58 MHz, η=0 and δ=0.04. However, peaks are also observed which can be ascribed tentatively to the presence of AsF₃. The strong textural features of the spectra can be related to the direction of the electric field gradient (efg) with respect to the incident beam direction and the detector plane. This suggests that potentially TDPAD can be useful for the characterization of GIC's.